Specify image, not environment.os in appveyor.yml (#28)

nblumhardt · web-flow · commit bd8e0d401acd · 2018-10-27T07:05:25.000+10:00
diff --git a/appveyor.yml b/appveyor.yml
@@ -1,7 +1,6 @@
 version: '{build}'
 skip_tags: true
-environment:
-  os: Visual Studio 2017
+image: Visual Studio 2017
 configuration: Release
 build_script:
 - ps: ./Build.ps1
